Daily Roundup: May 28, 2009

Keep it Pristine: The U.S. Forest Service announced a halt to building new roads in designated areas of national forests today, which may protect almost 60 million acres of land from development. Los Angeles Times

Congress in China: A congressional delegation that includes Nancy Pelosi is in China this week to discuss climate change and environmental issues with leaders there. Grist

Heat is On: The American West will be subject to more heat waves than initially predicted, say experts. Nature

Green on Top: Toronto’s council voted 36-2 that residential roofs in the city need to be green within one year, and that industrial roofs need to be green within two years. Treehugger

Blue Genes: Researchers have learned that pollution can change human DNA within just three days. National Geographic

--Avital Binshtock